Automobile radiator



June 23, 1925.

2 Sheets-Sheet l aimomowwmmammamamowohroi J 911.111 PHQIAUHHUH C. H. NORRLIN AUTOMOBILE RADIATOR "Filed July 24, 1923 'June'za 1925. l I 1,542,905

` C. H. NORRLlN AUTOMOBILE RDIATOR l Filed July 24, 1925 2 Sheets-Sheet 2 y 5 l v g CH'n'RLEs. H. lNo'Rfiziiii'v'g vor 'rHiiiAii-EiLPi-HA, ,rfiiiiirsirLa'ANIA.'y

. To all whom z'zvnayconc'ern:

Y' AUTOMOBILE Minimo-a; 'I f applic-anonima iuiy24, 1923. rserialize'.653,546.

Beit known` that 12,; CHARLES I-I.NoRRLiN, a citizen ofthe United States, and resident of Tacony, Philadelphia, in the county vof Philadelphia 'and State of Pennsylvania, have invented certain new and useful Improvements in Automobile Radiators; and I do hereby declare the following to'be afull, clear, and exact description ofthe invention, such as willv enable others skilled in the: art to which it appertains to make and-use the same. i

This inventionrelates tomeans forfcool'- ing or condensing'iuids and has particular reference to radiatorsfor motor vehicles.

andl other mechanisms dependenty for eliicientandleconomical operation upon means for cooling or condensing steamer Iother vapor.V One'objectkof'the inventionv is to provide a simple and inexpensivek structure wherein the yliuid to vbe cooled or condensed` willbe caused to flow ina thin film over a tortuo'uspath togiveolf its heat, andan-,-

other object is to provide forv an efficient circulation of air across'and labout the'path of the fluid. Other objects of the invention are toprovide aiv radiator of few parts, to

provide means.' for maintaining -therspaced;y relation of the walls of thenid passageg.

and to effectually close allijointsf. Other objects will appear incidentally in the course of the following descriptions: 1; :l

Inthe. annexed drawings, which illustrate one embodiment of the invention, Figure l is a front elevation of aradiatorfcontaining my improvements; Figure 2 is an v end elevation of the same; yFigure 3 is a vertical front to rear section taken principally on the central line of the radiator; Figure t is a detail section on the line 4-4 of Figure 3; Figure 5 is a detail section on the line 5-5 of Figure 4; Fig. 6 is a detail front to rear vertical section of a portion of the front wall of the radiator on the line 6-6 of Fig. 1.

Fig. 7 is a similar view of the rear wall.

Fig. 8 is a detail transverse section on the line 8-8 of Fig. 7.

In carrying out my invention, I employ two sheets l, 2 of m'etal or other suitable material pressed or folded into asinuous or corrugated form so that they may be fitted together, as shown in Figure 3, with the alternate bends or bights of one sheet fitting within bends or biglitsof the other sheet. A narrow space 3 is thus formed between thetwo...sheets through* which v.the water or other'luid mayzflow inv athin film from which'v thelcontained heat may readilyl and rapidly escape, and it [will bereadily notedl that the formation 'provides'a large radiating surface within a relatively small cubic space. f It will, .ofcourse,.bev understood thatv the Acorrugations maybe provided inany desired size, shape orv number. vTheside edgesnof the sheets llv and. 2 may be joined inl any convenient mannerand I- have illus'- trated a .desirable methodin which the edge of the sheet-2. is crimped .orlcompressed,- as at 4, against :the adjacent edge portions of the slieetl which is'folded or rdoubled outwardly to Iform a reentrant 'flange 'jhousing crimped'- edge but solderingy or brazingof the joint will insure against leakage.y To maintain the desired spaced relation of the sheets l and 2, riflies' may be formed in or on the yinner'surfacesfof the` sheets at inter-1 vals to: bridge the spa-ce A.between the sheets and serve-as bracesrto prevent collapse of thesheets. As shown `most-clearly in Figs.v

riifles'ordepressions are formed onlyy onthe.

rear wallhor sheet 2. yhen the two sheets or walls are assembled, the riffles come in contact with'the wall.v and serve to maintain the proper spacedvrelation of the two walls orfsheets, preventing them fromcollapsing and closing or obstructing the Huid passage. To provide for ample free circulation of air through the radiator, I form openings 7 through the several bends or bights of the fluid chamber at frequent intervals throughout the same. The walls of these openings may be defined by extending portions of the inner sheet into abutting relation to the outer sheet, as at 8, and pressing the outer sheet'inwardly in the form' of a nipple 9 fitting snugly within the extended portions of the inner sheet.` The jointl may be sealed by brazing or soldering. Between the air openings or passages, I expand the bends or bights of the sheets, as at 10, to equalize the space and compensate for the loss of capacity due to the provision of the nipples 9.

The terminal portions of the sheets l and 2 are flared centrally toward their edges, as

the edge of tl'iessheet'Q. 'The flange may be vfolded :or compressed tightly upon 'the'.

at 11 and 12, thereby forming spouts or noz- Zles to be coupled to the inlet fitting 13 and the outlet fitting 14 respectively, the inlet fitting being constructed with a filling branch 15. The spouts or nozzles 11 and 12 are fitted snugly in the proper openings or branches of the fittings 13 and 14 and the out-side joints are sealed with solder, vas at 16, the fittings being connected with the water-circulating system in the usual manner. It is to be understood, however, that the sheets 1 and 2 may be formed or joined into similar manifolds.

From the foregoing description, taken in connection with the accompanying drawings, it will be seen that I have provided a radiator consisting essentially of two mating sheets of material secured together to form a chamber or tubular tortuous passage through which the fluid will flow in a thin film. It will also be noted that the construction permits the air to strike the walls of the radiator in a wide sheet and play at once upon a :large surface area. The device isexceedingly simple and effective and may be very economically produced. I-Iaving fully described my invention, what I claim as new and desire to secure by Letters-Patent, is

1. A radiator consisting essentially of two mating sheets of counterpart corrugated form secured together along their side edges to define a wide shallow tortuous passage for fluid, the bights of the corrugations beling disposed transversely to the air flow.

2. A radiator consisting essentially of two sheets of corrugated material fitted together with the alternate bights of one sheet within the alternate bights of the other sheet, the side edges of the sheets being connected bysealed joints, and the bights of the sheets extending transversely to the air fiow whereby the entire area of the front sheet is presented to the cooling medium.

A radiator consisting essentially of two mating sheets of corrugated material secured together with the corrugations of one sheet fitting lwithinthe corrugations fof the other sheet, there being air-circulating passages through the bights-of the sheets closed to the space between the sheet-s and the corrugations extending transversely to the air flow whereby the entire area of the front sheet is presented to the said flow.

4. A radiator consisting of mating spaced corrugated walls defining a tortuous passage for liquid, the walls having openings through each corrugation at intervals, the inner' wall at each corrugation having p0rtions extending from the openings and abutting the outer wall, and nipples projected from theV outer wall through the respective openingsin the inner wall and defining air pass-ages sealed to the space between the walls, the corrugations beingtransverse to the air flow.

5. A radiator consisting of mating corrugated walls secured together at their side edges and defining a shallow tortuous passage for fluid, and having openingsthrough their corrugations, and nipples projecting from one sheet and sealed in the vother sheet at said openings to define air-circulating passages, the corrugations of the sheets be' ing expanded between said passages and being disposed transversely to the air flow.

6. A radlator `consisting of mating corrugated sheets secured together at their side.

edges to define a shallow tortuous .passage for'fiuid, the ycorrugations being transverse to the air flow and the end edge portions of the sheets, being in divergent relation to forniflared spouts for att-achmentto inlet and outlet fittings.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

j CHARLES I'I. NORRLIN.

Vitnesses:

MORRIS C. MAXWELL, J AMES I-I. FREDERICK. 

